Buggy code:
@ MayBeExcluded @ NativeCode ( "{if(this.%node%[eventName])this.%node%[eventName](%StrictWeb%.%globalEvent%);return<seq2seq4repair_space>this;}" ) public final S fireEvent ( String eventName ) { } @ MayBeExcluded @ NativeCode ( "{if(cb==null){this.%node%[name]=null;return;}" + ( ( ( ( ( "var<seq2seq4repair_space>b=this;" + "b.%node%[name]<seq2seq4repair_space>=<seq2seq4repair_space>function(ev)<seq2seq4repair_space>{" ) + "%StrictWeb%.%swTarget%=null;" ) + "%StrictWeb%.%globalEvent%=ev||window.event;" ) + "return<seq2seq4repair_space>cb.%delegate%(b);" ) + "}}" ) ) public void setEventDelegate ( String name , CommonDelegate < Boolean , S > cb ) { } @ MayBeExcluded public final S onClick ( CommonDelegate < Boolean , S > callback ) { } @ MayBeExcluded public final S onMouseMove ( CommonDelegate < Boolean , S > onMouseMoveCallback ) { } @ MayBeExcluded public final S onMouseOut ( CommonDelegate < Boolean , S > onMouseOutCallback ) { } @ MayBeExcluded public final S onMouseOver ( CommonDelegate < Boolean , S > onMouseOutCallback ) { } @ MayBeExcluded public final S onMouseUp ( CommonDelegate < Boolean , S > onMouseUpCallback ) { } @ MayBeExcluded public final S onMouseDown ( CommonDelegate < Boolean , S > onMouseDownCallback ) { } @ MayBeExcluded public final S onSubmit ( CommonDelegate < Boolean , S > callback ) { } @ MayBeExcluded public final S onDblClick ( CommonDelegate < Boolean , S > callback ) { } public final S text ( String t ) { } @ MayBeExcluded public final S textB ( String t ) { } @ MayBeExcluded public final S removeChilds ( ) { } public final S append ( C c ) { } @ MayBeExcluded public final S className ( String className ) { } @ MayBeExcluded public S addClass ( String className ) { } @ MayBeExcluded public S href ( String href ) { } @ MayBeExcluded public S action ( String a ) { } @ MayBeExcluded public S appendList ( List < C > items ) { } @ MayBeExcluded public S appendAll ( C [ ] items ) { } @ MayBeExcluded public S styleDisplay ( String d ) { } @ MayBeExcluded public S cssText ( String cssText ) { } @ MayBeExcluded public S cursor ( String cursor ) { } @ MayBeExcluded public S cursorPointer ( ) { } @ MayBeExcluded public S position ( String position ) { } @ MayBeExcluded public S add ( DOMBuilder < ? extends C , ? extends Node , ? > b ) { } @ MayBeExcluded public S addFirst ( DOMBuilder < ? extends C , ? extends Node , ? > b ) { } @ MayBeExcluded public S addList ( List < DOMBuilder < ? extends C , ? extends Node , ? > > items ) { } @ MayBeExcluded public S addAll ( DOMBuilder < ? extends C , ? extends Node , ? > [ ] items ) { } @ MayBeExcluded public S hide ( ) { } @ MayBeExcluded public S show ( ) { } @ MayBeExcluded public S showHide ( boolean show ) { } @ MayBeExcluded public String toggle ( ) { } @ MayBeExcluded public S type ( String type ) { } @ MayBeExcluded public S name ( String name ) { } @ MayBeExcluded public S value ( Object value ) { } @ MayBeExcluded public S temp1 ( Object t ) { } @ MayBeExcluded public S temp2 ( Object t ) { } @ MayBeExcluded public S temp3 ( Object t ) { } @ MayBeExcluded public S width ( String width ) { } @ MayBeExcluded public S height ( String width ) { } @ MayBeExcluded public S method ( String method ) { } @ MayBeExcluded public S enctype ( String enctype ) { } @ MayBeExcluded public S width100 ( ) { } @ MayBeExcluded public S onChange ( CommonDelegate < Boolean , S > callback ) { } @ MayBeExcluded public S vAlign ( String va ) { } @ MayBeExcluded public S src ( String src ) { } @ MayBeExcluded public S title ( String t ) { } @ MayBeExcluded <START_BUG> public S field ( String f ) { <END_BUG>

Fix:
public S field ( Object f ) {